METHODS OF CALIBRATING A FLUID ANALYZER FOR USE IN A WELLBORE
First Claim
1. A method of generating calibration data for a fluid analyzer for use in a downhole tool, comprising:
- lowering a downhole tool including a fluid analyzer to a location in a wellbore;
measuring, via the fluid analyzer, a characteristic value of a calibration fluid or a vacuum while the fluid analyzer is at the location;
obtaining an expected characteristic value for the calibration fluid or the vacuum at the location; and
comparing the measured characteristic value to the expected characteristic value to generate a calibration value for the fluid analyzer.
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Abstract
Methods of calibrating a fluid analyzer for use in a wellbore are described. An example method of generating calibration data for a fluid analyzer for use in a downhole tool involves lowering a downhole tool including a fluid analyzer to a location in a wellbore, measuring, via the fluid analyzer, a characteristic value of a calibration fluid or a vacuum while the fluid analyzer is at the location, obtaining an expected characteristic value for the calibration fluid or the vacuum at the location, and comparing the measured characteristic value to the expected characteristic value to generate a calibration value for the fluid.
53 Citations
33 Claims
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1. A method of generating calibration data for a fluid analyzer for use in a downhole tool, comprising:
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lowering a downhole tool including a fluid analyzer to a location in a wellbore; measuring, via the fluid analyzer, a characteristic value of a calibration fluid or a vacuum while the fluid analyzer is at the location; obtaining an expected characteristic value for the calibration fluid or the vacuum at the location; and comparing the measured characteristic value to the expected characteristic value to generate a calibration value for the fluid analyzer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of calibrating a fluid analyzer for use in a downhole tool, comprising:
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lowering a downhole tool, including a fluid analyzer, into a wellbore; measuring, via the fluid analyzer, a characteristic of a calibration fluid or a vacuum while the downhole tool is in the wellbore; and using the measured characteristic and an expected characteristic of the calibration fluid or the vacuum to calibrate the fluid analyzer. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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30. A method of generating calibration information for a fluid analyzer, comprising:
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measuring a response of the fluid analyzer to a calibration fluid or a vacuum at a location in a wellbore; comparing the measured response of the fluid analyzer to an expected response to the calibration fluid or the vacuum; and generating calibration information based on the comparison of the measured response and the expected response. - View Dependent Claims (31, 32, 33)
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Specification